<!--用户管理页-->
<template>
  <!--<h1>  - 用户列表页 UserView.vue</h1>-->


  <div style="height: 6vh;background-color:#fff;padding: 10px 20px;">
    <span style="font-size:20px;line-height: 60px;">用户管理</span>
    <el-button @click="dialogVisible=true" type="primary" style="float: right;margin-top:10px;">新建用户
    </el-button>
  </div>


  <!-- 新建/编辑用户弹窗 -->
  <!-- :before-close="handleClose"
  在关闭之前调用handleClose()方法,避免点击窗口外部也能关弹窗  -->
  <el-dialog :title="dialogTitle" v-model="dialogVisible"
             :before-close="handleClose"
             style="width: 1000px;padding:40px;">
    <el-form label-position="top" label-width="80px">
      <el-row :gutter="30">
        <el-col :span="12">
          <el-form-item label="用户名">
            <el-input placeholder="请输入用户名" v-model="saveUserForm.username"
                      :disabled="saveUserForm.id !=null"></el-input>
          </el-form-item>
        </el-col>
        <el-col :span="12">
          <el-form-item label="手机号">
            <el-input placeholder="请输入手机号" v-model="saveUserForm.phone"></el-input>
          </el-form-item>
        </el-col>
      </el-row>

      <el-row :gutter="30">
        <el-col :span="12">
          <el-form-item label="邮箱">
            <el-input placeholder="请输入邮箱" v-model="saveUserForm.email"></el-input>
          </el-form-item>
        </el-col>
        <el-col :span="12">
          <el-form-item label="年龄">
            <el-input placeholder="请输入年龄" v-model="saveUserForm.age"></el-input>
          </el-form-item>
        </el-col>
      </el-row>

      <el-row :gutter="30">
        <el-col :span="6">

          <!--     注释的是我自己的代码，下面一段是老师的代码，然后bug就消失了     -->
          <!--     ok我找到了，@click是点击事件，需要改成@change改变事件      -->
          <!--                    <el-form-item label="职级">-->
          <!--                      <el-select placeholder="请选择" v-model="saveUserForm.level" @click="loadLeader">-->
          <!--                        &lt;!&ndash;              <el-option label="职员" value="10"></el-option>&ndash;&gt;-->
          <!--                        &lt;!&ndash;              <el-option label="经理" value="20"></el-option>&ndash;&gt;-->
          <!--                        &lt;!&ndash;              <el-option label="总监" value="30"></el-option>&ndash;&gt;-->
          <!--                        &lt;!&ndash;              <el-option label="总裁" value="40"></el-option>&ndash;&gt;-->
          <!--                        <el-option v-for="item in levelOptions"-->
          <!--                                   :label="item.label" :value="item.value">-->
          <!--                        </el-option>-->
          <!--                      </el-select>-->
          <!--                    </el-form-item>-->


          <!--  老师的代码        -->
          <el-form-item label="职级">
            <el-select placeholder="请选择" v-model="saveUserForm.level" @change="loadLeader">
              <!--              <el-option label="职员" value="10"></el-option>-->
              <!--              <el-option label="经理" value="20"></el-option>-->
              <!--              <el-option label="总监" value="30"></el-option>-->
              <!--              <el-option label="总裁" value="40"></el-option>-->
              <el-option v-for="item in levelOptions"
                         :label="item.label" :value="item.value"></el-option>
            </el-select>
          </el-form-item>


        </el-col>
        <el-col :span="6">
          <el-form-item label="直属领导">
            <el-select placeholder="请选择" v-model="saveUserForm.parentId">
              <!--              <el-option label="shaoyun" value="1"></el-option>-->
              <!--              <el-option label="mike" value="2"></el-option>-->
              <el-option v-for="item in leaderOptions"
                         :label="item.username" :value="item.id">
              </el-option>

            </el-select>
          </el-form-item>
        </el-col>
        <el-col :span="4">
          <el-form-item label="性别">
            <el-radio-group v-model="saveUserForm.gender">
              <el-radio label="男" border value="1" style="margin: 0;"></el-radio>
              <el-radio label="女" border value="0"></el-radio>
            </el-radio-group>
          </el-form-item>
        </el-col>
        <el-col :span="6">
          <el-form-item label="用户状态">
            <el-radio-group v-model="saveUserForm.status">
              <el-radio label="启用" border value="1" style="margin: 0;"></el-radio>
              <el-radio label="禁用" border value="0"></el-radio>
            </el-radio-group>
          </el-form-item>
        </el-col>
      </el-row>

    </el-form>

    <template #footer>
      <el-button @click="handleClose">取消</el-button>
      <el-button type="primary" @click="saveUser">保存</el-button>
    </template>

  </el-dialog>

  <!-- 用户查询卡片 -->
  <el-card style="margin: 20px;height: 70px">

    <el-form :inline="true">

      <el-form-item label="用户搜索">
        <el-input placeholder="请输入用户名" style="width: 220px;" v-model="searchUserFrom.username"
                  @keydown.enter="loadUser"></el-input>
      </el-form-item>

      <el-form-item label="用户状态">
        <el-select placeholder="请选择用户状态" style="width: 290px;" v-model="searchUserFrom.status"
                   @change="loadUser">
          <el-option label="启用" value="1"></el-option>
          <el-option label="禁止" value="0"></el-option>
        </el-select>
      </el-form-item>

      <el-form-item>
        <el-button @click="resetSearch">重置</el-button>
        <el-button type="primary" @click="loadUser">查询</el-button>
      </el-form-item>

    </el-form>

  </el-card>


  <!-- 用户信息表格 -->
  <el-card style="margin: 20px;">

    <el-table :data="userArr">

      <el-table-column type="index" label="编号" width="80" align="center"></el-table-column>
      <el-table-column prop="username" label="用户名" align="center"></el-table-column>
      <el-table-column prop="phone" label="手机号" align="center"></el-table-column>
      <el-table-column prop="createTime" label="加入时间" align="center"></el-table-column>

      <el-table-column prop="status" label="用户状态" align="center">
        <template #default="scope">
          <el-switch @change="changeStatus(scope.row.id,scope.row.status)" active-value="1" inactive-value="0"
                     v-model="scope.row.status"
                     :disabled="scope.row.level==40"></el-switch>
        </template>
      </el-table-column>

      <el-table-column label="操作" align="center">
        <template #default="scope">
          <el-button type="primary" size="small" link :disabled="scope.row.level==40"
                     @click="resetPassword(scope.row.id)">密码重置
          </el-button>
          <el-button type="primary" size="small" link :disabled="scope.row.level==40"
                     @click="editUser(scope.row.id)">编辑
          </el-button>
          <el-button type="primary" size="small" link :disabled="scope.row.level==40" @click="deleteUser(scope.row.id)">
            删除
          </el-button>
        </template>
      </el-table-column>

    </el-table>

  </el-card>


</template>


<script setup>

// 定义变量用来控制新增用户弹窗是否出现
import {onMounted, ref} from "vue";
import axios from "axios";
import {ElMessage} from "element-plus";
import qs from "qs";

const dialogVisible = ref(false);
// 定义变量用来保存弹窗标题
const dialogTitle = ref('新建用户');

// 定义数组保存员工职级选项
const levelOptions = ref([
  {label: '职员', value: '10'},
  {label: '经理', value: '20'},
  {label: '总监', value: '30'},
  {label: '总裁', value: '40'}
]);
// 定义数组保存直属领导数据
const leaderOptions = ref([
  {username: 'shaoyun', id: '1'},
  {username: 'mike', id: '2'}
]);


// 定义方法获取直属领导数据
const loadLeader = () => {
  // 优化:如果已经勾选了直属领导,想再重新选择职级的话,需要将之前的直属领导数组与已选择的直属领导数据清空
  leaderOptions.value = [];
  saveUserForm.value.parentId = '';
  // 拿到当前用户选择的职级,直属领导的职级为当前用户的职级+10 注意转为number类型
  let level = (parseInt(saveUserForm.value.level)) + 10;
  console.log(level);
  // 给后端发请求查数据
  axios.get(BASE_URL + '/v1/user/select?level=' + level).then((response) => {
    if (response.data.code == 2000) {
      leaderOptions.value = response.data.data;
    } else {
      ElMessage.error(response.data.msg);
    }
  })
};

// 定义对象收集新增/修改员工弹窗的表单信息¬
const saveUserForm = ref({
  username: '',
  phone: '',
  email: '',
  age: '',
  level: '',
  parentId: '',
  gender: '',
  status: ''
});


// 定义保存用户的方法
const saveUser = () => {
  // console.log(saveUserForm.value);
  // 如果向后端发请求的参数是一个对象,前端可以使用qs将参数对象转为查询字符串的格式发送
  // 格式:username=tom&phone=18811112222&email=tom@qq.com&age=12&level=20&parentId=1&gender=1&status=1
  // 这样在前端直接处理好,后端不需要考虑前端传过来的是否为对象,也不用加@RequestBody注解了
  let data = qs.stringify(saveUserForm.value);
  console.log(data);
  axios.post(BASE_URL + '/v1/user/save', data)
      .then((response) => {
        if (response.data.code == 2000) {
          ElMessage.success('保存成功!');
          dialogVisible.value = false;//关闭弹窗
          saveUserForm.value = {};//清空已入库的表单数据，否则再次打开弹窗还是之前的值
          // 新增或者更新用户后还需要加载用户数据
          loadUser();
        } else {
          ElMessage.error(response.data.msg);
        }
      });
}

// 处理弹窗关闭的方法
const handleClose = () => {
  if (confirm('确定关闭本窗口吗?')) {
    // 用户确认关闭后,关闭弹窗
    dialogVisible.value = false;
    // 清空已输入的表单数据
    saveUserForm.value = {};
  }
}

// 定义数组用来保存用户列表的数据(假数据，实际上是从数据库取出来)
const userArr = ref([
  // {username: 'ss', phone: '1234567890', createTime: '2023-01-01', status: '1'},
  // {username: 'xx', phone: '2234566899', createTime: '2024-11-11', status: '0'}
]);

// 定义对象用来保存查询条件
const searchUserFrom = ref({username: '', status: ''});

// 定义加载用户数据的方法
const loadUser = () => {
  let data = qs.stringify(searchUserFrom.value);
  console.log(data);
  // 如果有查询条件，就根据条件查询，没有查询条件，默认查询全部员工信息
  axios.get(BASE_URL + '/v1/user/select?' + data).then((response) => {
    // 如果后端返回的状态码是2000，说明成功
    if (response.data.code == 2000) {
      // 把成功请求回来的数据装到与表格绑定的数组中
      userArr.value = response.data.data;
    } else {
      // 否则失败，打印错误原因
      ElMessage.error(response.data.msg);
    }
  })
}

// 页面加载完毕，立即调用的方法
onMounted(() => {
  // 加载员工数据
  loadUser();
})

// 重置按钮触发事件
const resetSearch = () => {
  // 清空所有搜索出来的数据
  searchUserFrom.value = {};
  // 加载全部数据
  loadUser();
}

// 修改密码/重置密码
const resetPassword = (userId) => {
  axios.post(BASE_URL + '/v1/user/update/password/' + userId).then((response) => {
    if (response.data.code == 2000) {
      ElMessage.success('密码重置成功!');
    } else {
      ElMessage.error(response.data.msg);
    }
  })
};

// 编辑用户
const editUser = (id) => {
  // 打开弹窗
  dialogVisible.value = true;
  // 修改标题
  dialogTitle.value = '编辑员工';
  // 给后端发送请求，查用户信息
  axios.get(BASE_URL + '/v1/user/select?id=' + id).then(response => {
    if (response.data.code == 2000) {
      saveUserForm.value = response.data.data[0];

      // 获取可选直属领导数据
      let level = parseInt(saveUserForm.value.level) + 10;
      // 给后端发请求查数据
      axios.get(BASE_URL + '/v1/user/select?level=' + level).then((response) => {
        if (response.data.code == 2000) {
          leaderOptions.value = response.data.data;
        } else {
          ElMessage.error(response.data.msg);
        }
      });
    } else {
      ElMessage.error(response.data.msg);
    }

  });
};

// 修改员工状态
const changeStatus = (userId, status) => {
  axios.post(BASE_URL + '/v1/user/update/status/' + userId + '/' + status).then((response) => {
    if (response.data.code == 2000) {
      ElMessage.success('修改成功！')
    } else {
      ElMessage.error(response.data.msg);
      // 如果数据没修改成功，需要将页面当前用户的状态重置为修改前的状态
      loadUser();
    }
  })
};

// 删除当前用户
const deleteUser = (userId) => {
  if (confirm('你确定删除该员工吗')) {
    axios.post(BASE_URL + '/v1/user/delete/' + userId).then((response) => {
      if (response.data.code == 2000) {
        ElMessage.success('删除成功！');
        // 加载全部数据
        loadUser();
      } else {
        ElMessage.error(response.data.msg);
      }
    })
  }
}

</script>


<style scoped>

</style>